From the English Wikipedia page [1], there being more information on the French Wikipedia page [2]
The National Library of Tunisia (in Arabic]: المكتبة الوطنية التونسية) is the legal deposit and copyright library for Tunisia.
Founded in 1885, this library was called French Library. Its present name dates from the beginning of independence of Tunisia. In 2005, it was relocated to its present location, Boulevard 9 avril, just near the National Archives of Tunisia and some higher institutions like the Faculty of Social and Human Sciences.